Prevalence of color vision deficiency among primary school pupils in Duhok city, Kurdistan Region, Iraq
DOI:
https://doi.org/10.56056/amj.2022.153Keywords:
Prevalence, Color vision deficiency, Ishihara pseudo isochromaticAbstract
Background and objectives: Color vision deficiency or color blindness is a difficulty in recognizing certain colors. The color vision deficient persons remain unmindful about their condition and only become aware accidentally when tested for color vision. Color vision deficiency may affect job performance in certain careers like drivers, pilots, electrical and electronic engineers, policemen, artists, and medical practitioners. The study aims to detect the color vision deficiency prevalence among the primary school pupils in Duhok city.
Methods: A cross sectional study was conducted among randomely selected two primary school children in Duhok city, Iraq from 1st February 2019 to 1st May 2019. Socio-demographic data was collected by interview using a questionnaire. All participants underwent color vision evaluation using Ishihara’s pseudo isochromatic test 24 plate editions. Data analysis was done using SPSS version 24.
Results: Out of 978 pupils, 491 were males (50.21%) and 487 were females (49.79%), color vision deficiency was detected in 55 pupils giving a prevalence of (5.63%); among them, 38 pupils have had deutan defects (3.89%) and 17 had protan defects (1.74%). Color vision deficient pupils were 47 males (9.6%) and 8 females (1.64%).
Conclusions: This study found that 5.63% of pupils were color deficient, with male gender predominance. All of the color deficient pupils were unmindful of their condition. Green color deficient pupils (deutans) were more than red color deficient (protans), with zero cases of total color blindness.
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Shah A, Hussain R, Fareed M, Afzal M. Prevalence of Red-Green Colour Vision De-fects among Muslim Males and Females of Manipur, India. Iran J Public Health. 2013; 42(1): 16-24.
Genetics Home Reference 2020, Color vision deficiency, viewed 2020.
< https://ghr.nlm.nih.gov/condition/color-vision-deficiency#sourcesforpage-
Barrett K, Brooks H, Boitano S, Barman S. Ganong’s Review of medical physiology. 23rd ed. Lange Medical Books/McGraw-Hill publisher; 2010.p.195-7.
Neitz M, Neitz J. Molecular genetics of color vision and color-vision defects.
Arch Ophthalmol. 2000; 118 (5): 691-700.
Cumberland P. Impact of congenital colour vision defects on occupation. Arch Dis Child. 2005; 90(9):906-8.
Chakrabarti S. Psychosocial aspects of colour vision deficiency: Implications for a career in medicine. Nat Med J India. 2018; 31(2):86-96
Calculation of Sample Size. ResearchGate, 2020 https://www.researchgate.net/post/Calculation_of_Sample_Size
Inherited color vision deficiency. Color blind awareness, Oxfordshire: England, viewed 2019. http://www.colourblindawareness.org/colourblindness/inheritedcolourvisiondeficiency
Barbur J, Rodriguez-Carmona M. Colour vision requirements in visually demanding occupations. Br Med Bull. 2017; 122(1):51-77.
Fanlo ZA, Gutiérrez VJ, Pueyo RV. Review of the main colour vision clinical assessment tests. Arch Soc Esp Oftalmol. (English Edition). 2019; 94 (1):25-32.
Ishihara Test for Color Blindness, Color Blindness, 2019.
https://www.colour-blindness.com/colour-blindness-tests/ishihara-colour-test-plates
Choi S, Hwang J. Ishihara test in 3- to 6-year-old children. Jpn J Ophthalmol. 2009; 53 (5): 455-7. doi: 10.1007/s10384-009-0716-1. Epub 2009.
Marechal M, Delbarre M, Tesson J, Lacambre C, Lefebvre H, Froussart-Maille F. Color Vision Tests in Pilots’ Medical Assessments. Aerosp Med Hum Perform 2018; 89(8):737-43.
Birch J. Identification of red-green colour deficiency: sensitivity of the Ishihara and American Optical Company (Hard, Rand and Rittler) pseudo-isochromatic plates to identify slight anomalous trichromatism. Ophthal Physiol Opt. 2010; 30 (5):667-71. DOI: 10.1111/j.1475-1313.2010.00770.x
Xie J, Tarczy-Hornoch K, Lin J, Cotter S, Torres M, Varma R. Color Vision Deficiency in Preschool Children. Ophthalmology. 2014; 121 (7):1469-74.
Abdulrahman M. Prevalence of Color Vision Deficiency among Students in Hajand and Amad High Schools in Shekhan City. Kurd J Appl Res. 2017; 2 (2):84-8.
Karim K, Saleem M. Prevalence of Congenital Red-Green Color Vision Defects among Various Ethnic Groups of Students in Erbil City. Jordan J Biol Sci. 2013; 6 (3):235-8.
Almusawi BMS. The Prevalence of Color Vision Deficiency among Adult Males from Baghdad Province. Iraq postgrad Med J. 2014; 13 (1):134-9.
Al-Amood W, Mohammed S, Al-Sanawi D, Radhi A, Rehman B. Incidence of Colour Blindness in Iraqi Arabs. Hum Hered. 1981; 31(2):122-3. https://doi.org/10.1159/000153191
Al-Aqtum M, Al-Qawasmeh M. Prevalence of Colour Blindness in Young Jordanians. Ophthalmologica. 2000; 215(1):39-42.
Citirik M, Batman C. Congenital Color Blindness in Young Turkish Men. Ophthal Epidemiol. 2007; 14 (2):99-100.
Oriwo OM, Alotaibi AZ. Colour Vision Screening among Saudi Arabian Children. S. Afr J Sci. 2008; 67(2):56-61.
Momeni-Moghaddam H, Ng J, Robabi H, Yaghubi F. Color Vision Deficiency in Zahedan, Iran. Optom Vis Sci. 2014; 91(11):1372-6.
doi: 10.1097/OPX.0000000000000393
Birch J. Worldwide prevalence of red-green color deficiency. J Opt Soc Am. 2012; 29(3):313-20.
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Copyright (c) 2022 Azad Jameel Hussein, Samim Ahmed Al-Dabbagh
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